Question

You only need to do _______ if the null hypothesis is rejected

and there are more than two treatment groups.

a.Tukey's
b.Pooled variance calculations
c.The Scheffe test
d.Pairwise comparisons

Answer 1

Pairwise comparisons should be done if the null hypothesis is rejected and there are more than two treatment groups.

Step-by-step explanation:

When the null hypothesis is rejected and there are more than two treatment groups, the appropriate test to do is pairwise comparisons.

This test allows you to compare each treatment group with each other group individually to determine if there are significant differences.